Device having pivotable hinges

ABSTRACT

In one embodiment, a device ( 100 ) having a first portion ( 102 ) and a second portion ( 104 ), the first or second portion being pivotably adjustable in two directions to reveal the other of the first or second portion, has a biaxially pivotable hinge ( 106 ) and a disengagable uniaxially pivotable hinge ( 108 ). The biaxially pivotable hinge ( 106 ) interconnects the first and second portions ( 102, 104 ). The uniaxially pivotable hinge ( 108 ) is capable of selectively (a) interconnecting the first and second portions ( 102, 104 ) and (b) releasing connection between the first and second portions ( 102, 104 ), the selectivity being dependent upon relative rotational position of the first portion ( 102 ) and the second portion ( 104 ) about the uniaxially pivotable hinge ( 108 ).

BACKGROUND

This disclosure relates to devices with pivotable hinges, and moreparticularly, to cellular telephone/personal digital assistantcombination devices having pivotable hinges.

Wireless electronic devices are ubiquitous in modern society.Particularly prevalent are cellular telephones, pagers and personaldigital assistants. Many people require the functions of each of thesedevices to carry on their lives in a way that is acceptable to them.Such people have been “burdened” with carrying more than one wirelesselectronic device to achieve the desired blend of functionalities.Naturally, the wireless industry has been working to respond to alreadyvoiced or prospective complaints about the need to carry multipledevices. The obvious answer is to combine functionality in a singledevice. While the ultimate answer of making the combination may seemaxiomatic, there are difficult issues surrounding the implementationthereof. Such devices must remain aesthetically pleasing andergonomically effective.

In one example of a dual mode device, a Motorola MPX cellular telephoneand personal digital assistant is openable in two directions to beeffectively utilized in two distinct modes. The MPX device has a hingeassembly that connects a first portion of the device and a secondportion of the device. The hinge assembly allows movement of the twoportions of the device relative to one another in two distinctdirections such that the device can be used for different purposes atthe different positions. The device requires separate actuation ofcomponents to allow movement of the first portion relative to the secondportion in one of the possible directions of movement. Morespecifically, in order to open the device as a telephone, one merelyneeds to impart an opening force to one or the other of the first andsecond portions whereas to open the device as a personal digitalassistant (PDA), the user is required additionally to actuate a releasebutton simultaneous to imparting an opening force in the desireddirection. While the MPX device operates effectively, there is anopportunity for further simplification of operation.

BRIEF DESCRIPTION OF DRAWINGS

Refer now to the figures, which are exemplary, not limiting, and whereinlike elements are numbered alike in several figures and, as such may notbe discussed in relation to each figure.

FIG. 1 is a perspective partial cut-away view of one embodiment of adevice having pivotable hinges in a closed position.

FIG. 2 is an exploded perspective view of a male portion of oneembodiment of a uniaxially pivotable hinge.

FIG. 3 is a perspective view of a female portion of the embodiment ofthe uniaxially pivotable hinge illustrated in FIG. 2.

FIG. 4 is a broken away view of one embodiment of a biaxially pivotablehinge in cross-section.

FIG. 5 is a perspective view of one embodiment of a device havingpivotable hinges in a first open position.

FIG. 6 is a perspective view of one embodiment of a device havingpivotable hinges in a second open position.

FIG. 7 is a perspective view of one embodiment of a cellulartelephone/PDA combination device in a cellular telephone mode

FIG. 8 is a perspective view of one embodiment of a cellulartelephone/PDA combination device in a PDA mode.

DETAILED DESCRIPTION

Disclosed herein are devices with pivotable hinges. In one embodiment, adevice has a first portion and a second portion. The first portion ispivotably adjustable in two directions relative to the second portion.The device includes a biaxially pivotable hinge and a disengagableuniaxially pivotable hinge. The biaxially pivotable hinge interconnectsthe first and second portions. The uniaxially pivotable hinge is capableof selectively (a) interconnecting the first and second portions and (b)releasing connection between the first and second portions, theselectivity being dependent upon a rotational position of the firstportion relative to the second portion about the uniaxially pivotablehinge.

Further disclosed herein is a telephone/personal digital assistantcombination device including a display housing and a keypad housing,plus a first hinge interconnecting the display housing and the keypadhousing that is pivotable in at least two directions. A second hingefurther interconnects the display housing and the keypad housing, thesecond hinge being automatically disengagable when the display housingis at less than a selected pivot angle relative to the keypad housing.

Yet further disclosed herein is a method for pivotably adjusting a firstportion of a device in two directions relative to a second portion ofthe device. The method includes rotating the first portion relative tothe second portion around a first pivoting axis of a biaxially pivotablehinge and a uniaxially pivotable hinge to be in a closed position or afirst open position; and rotating the first portion relative to thesecond portion around a second pivoting axis of the biaxially pivotablehinge to be in the closed position or a second open position.

The above described and other features are exemplified by the followingdetailed description.

FIG. 1 is a perspective partial cut-away view of one embodiment of adevice having pivotable hinges in a closed position. In this embodiment,a device 100 having a first portion 102 and a second portion 104includes a biaxially pivotable hinge 106 and a uniaxially pivotable andselectively disengagable hinge 108. The device 100 further has a housingportion 110 having a first end 112 and a second end 114. The housingportion 110 is in the form of a cylindrical portion extending from thesecond portion 104. The first portion 102 has a sunken part 116 (shownin FIGS. 7-8) for receiving the housing portion 110. The device 100 isopenable in two directions: (1) along an axis 1-1 and (2) along an axis2-2. When the device is opened along axis 1-1, both hinges 106 and 108are engaged and employed. When the device opens along axis 2-2, onlyhinge 106 is engaged and employed, and hinge 108 is disengaged.

FIG. 2 is an exploded perspective view of a male portion of oneembodiment of a uniaxially pivotable hinge; FIG. 3 is a perspective viewof a female portion of the embodiment of the uniaxially pivotable hingeillustrated in FIG. 2. These two FIGS. should be consideredsimultaneously. The uniaxially pivotable hinge 108, in one embodiment,includes a male portion 202 and a female portion 252. The male portion202 has an actuator 206 and a biasing member 208, which may be a coilspring disposed around the actuator 206. The actuator 206 may be aone-piece integral unit made of two main sections: a first part 210 anda second part 212 separated by a raised collar 214. The actuator 206 mayhave a circular cross section with the first part 210 having a diametergreater than the second part 212. The raised collar 214 carries a radiallug 216 for connecting the male portion 202 to the first portion 102 ofthe device 100. Optionally, the male portion 202 may have a spacer 218at an end of the second part 212 of the actuator 206 opposite to an endof the second part 212 having the raised collar 214. The spacer 218 mayhave a protruding boss 220 that can be matingly received by the firstportion 102 to further strengthen the connection of the male portion 202to the first portion 102. In other embodiments, the spacer 218 may beabsent or may be in the form of an extension of the first portion 102.

Referring to FIG. 2, the first part 210 of the actuator 206 has anengagement interface profile with an actuator stop surface 222 and anactuator ramp surface 224. Actuator stop surface 222 and actuator rampsurface 224 interact with surfaces on the female portion 252 discussedhereunder. Further, first part 210 includes a chamfer surface 226.Chamfer surface 226 interacts with female portion 252 to urge actuator206 against biasing member 208 to facilitate engagement between the maleand female portions of the hinge when device 100 is being closed from anopen position about axis 2-2. Together, the noted surfaces make anengagement interface profile 228.

Referring to FIG. 3, the female portion 252 defines a complementaryprofile 254 located at a first end 112 of housing 110. The complementaryprofile is made up of the structure discussed in this paragraph andfurther includes a first receiving space 256. First receiving space 256includes an end surface 258, which defines a limit to possible depth ofengagement between actuator 206 and female portion 252. Extending(upwardly or outwardly depending on perspective) from surface 258 is aramp structure 260 that terminates at a land 262. Ramp structure 260 andland 262 interact with ramp surface 224 and stop surface 222 of firstpart 210 of actuator 206, respectively. When the device 100 is in theclosed position, stop surface 222 of actuator 206 is in contact withland 262, preventing full depth engagement of male portion 202 withfemale portion 252. Upon opening of device 100 about axis 1-1, stopsurface 222 slides laterally from land 262 allowing contact between rampsurface 224 and ramp structure 260 (of female portion 252). Such contactallows for a smooth transition of actuator 206 from a partial engagementwith female portion 252 to a full engagement with female portion 252where actuator 206 is seated deeply within female portion 252 thusstrengthening the uniaxially pivotable hinge. This provides a “solidfeel” when the device 100 is opened about axis 1-1.

Further features of female portion 252 include a bevel 264, which is anangularly disposed surface extending from land 262 in a direction thatwill cause actuator 206 to compress biasing member 208 when the device100 is opened about axis 2-2. The bevel 264 interacts with stop surface222 during an opening operation of device 100 about axis 2-2. Morespecifically, actuator 206 is urged against the bias of biasing member208 by being urged up bevel 264 due to an opening force applied by auser. When actuator 206 exceeds a peak 268, the device 100 opens easilywithout resistance.

The bevel 264 also acts to retain the device 100 in a closed positionwhen a user does not provide a specific opening force, because biasingmember 208 and bevel 264 tend to urge the device to a closed position.When closing the device 100, that was previously opened about axis 2-2,a strike 266 urges actuator 206 against biasing member 208 to allowclosure of the device. As actuator 206 passes peak 268 of strike 266,and encounters bevel 264, the biasing member 208 causes actuator 206 tomove toward land 262 thereby urging device 100 to the fully closedposition

In order to understand the disengagable action of the uniaxiallypivotable hinge 108, a discussion of the biaxially pivotable hinge 106will be helpful.

FIG. 4 is a broken away view of one embodiment of a biaxially pivotablehinge in cross-section. The biaxially pivotable hinge 106 has a centralmember 302 having a first connecting member 304 and a second connectingmember 306. The second end 114 of the housing 110 may have a secondreceiving space 308 adapted to matingly receive the first connectingmember 304. Also, the first portion 102 may have a third receiving space310 adapted to matingly receive the second connecting member 306.Pivoting of portion 102 is possible about a pivoting axis of each ofconnecting member 304 and connecting member 306 at individual times(i.e., one must choose the pivoting axis about which portion 102 is tobe pivoted; they cannot both be actuated together).

FIG. 5 is a perspective view of one embodiment of a device havingpivotable hinges in a first open position in one embodiment. The firstportion 102 can be rotated relative to the second portion 104 about thefirst pivoting axis 1-1 thereby utilizing both the uniaxially pivotablehinge 108 and biaxially pivotable hinge 106. The device 100 may be in aclosed position (i.e., a relative angle of about 0 degrees between thefirst portion 102 and the second portion 104, measured perpendicularlyto axis 1-1, as is illustrated in FIG. 1) or may be in a first openposition (i.e., a relative angle of greater than 0 degrees between thefirst portion 102 and the second portion 104, measured perpendicularlyto axis 1-1, as is illustrated in FIG. 5).

Desirably, the depth of engagement increases smoothly with an increasein the relative angle between the first portion 102 and the secondportion 104 so that “notching” movement is avoided. As noted above, thisis facilitated by the interaction of ramp surface 224 and ramp structure260 (FIGS. 2 and 3). Referring still to FIG. 5, when the first portion102 is rotated relative to the second portion 104 about the firstpivoting axis 1-1 from the closed position to the first open positionalong a direction of an arrow sign 410, the actuator 206 having thesurfaces identified above simultaneously rotates with the first portion102 and is pushed in a direction of an arrow sign 430 by the biasingmember 208, thereby increasing the depth of engagement of the maleportion 202 with the female portion 252. When the first portion 102 isrotated relative to the second portion 104 around the first axis 1-1from the first open position to the closed position along a direction ofan arrow sign 420, the actuator 206 simultaneously rotates with thefirst portion 102 and moves in a direction of an arrow sign 440(opposite the direction of engagement, i.e., opposite to the directionof the arrow sign 430), thereby decreasing the depth of engagement ofthe male portion 202 with the female portion 252. The decreased depth ofengagement increases the releasability of the connection between thefirst portion 102 and the second portion 104 when the device is openedto pivot about second connecting member 306 (axis 2-2 in FIG. 1) shownin FIG. 4.

In the closed position shown in FIG. 1, the male portion 202 shown inFIG. 2 and the female portion 252 shown in FIG. 3 have a very low depthof engagement. Specifically where contact occurs between stop surface222 and land 262, the force at this interface is provided by biasingmember 208 and is calculated to be sufficient to cause male portion 202to act as a detent. The detent is intended to retain the device in theclosed position but to easily release (disengage the male and femaleportions of the uniaxially pivotable hinge 108) upon force from a userto open the device to a second open position. This enables rotatabilityabout the axis 2-2.

FIG. 6 is a perspective view of one embodiment of a device havingpivotable hinges in a second open position. The first portion 102 can berotated relative to the second portion 104 around the second axis 2-2 tobe in the closed position (i.e., an angle of about 0 degrees between thefirst portion 102 and the second portion 104, measured perpendicularlyto axis 2-2, as is illustrated in FIG. 1) or a second open position(i.e., an angle of greater than 0 degrees between the first portion 102and the second portion 104, measured perpendicularly to axis 2-2, as isillustrated in FIG. 6)

An opening force imparted by a user in a direction of arrow sign 510tending to pivot the first portion 102 about axis 2-2 relative to secondportion 104 urges the male portion 202 out of engagement with the femaleportion 252 by urging actuator 206 to ride up bevel 264 and over peak268. When the first portion 102 is rotated relative to the secondportion 104 around the second axis 2-2 from the second open position tothe closed position along the direction of an arrow sign 520, theactuator 206 moves in a direction of an arrow sign 540, moving upchamfer surface 226, over peak 268 and down bevel 264 thereby engagingthe male portion 202 with the female portion 252.

FIG. 7 is a perspective view of one embodiment of a cellulartelephone/PDA combination device in a cellular telephone mode. The dualhinge system (i.e., the system having the biaxially pivotable hinge 106and uniaxially pivotable hinge 108) can be employed in a wide variety ofdevices for pivotably adjusting the devices in two directions to beeffectively utilized in two distinct modes. Referring to FIG. 7, in oneembodiment, the device is a cellular telephone/personal digitalassistant (PDA) combination device 700. The combination device has adisplay housing 702 as a first portion, a keypad housing 704 as a secondportion, a biaxially pivotable hinge 106 and a uniaxially pivotablehinge 108. The display housing 702 can have a display screen 720 and thekeypad housing 704 can have a keypad 730. The keypad 730 may be astandard twelve key keypad such as used on telephones and cellulartelephones or may have additional function buttons or other inputs thatmay be used to provide additional functionality to the combinationdevice. The combination device 700 pivots on the first axis 1-1 to thefirst open position to be used in a cellular telephone mode, as isillustrated in FIG. 7, and pivots on the second axis 2-2 to the secondopen position to be used in a PDA mode, as is illustrated in FIG. 8.

For usage in the cellular telephone mode, it is particularlyadvantageous to strengthen the uniaxially pivotable hinge 108. As one ofskill in the art will recognize, the combination device 700, when incellular telephone mode, bridges a user's ear and mouth and is heldagainst the head of the user. Pressure on the combination device 700from the user's hand or shoulder is exerted across the hinge urging itbeyond its maximum angular position. If the uniaxially pivotable hinge108 did not strengthen (i.e., extend more deeply into the female portion252) with opening of the device in cellular telephone mode, the phonewould “feel” flimsy and the hinge might be overextended.

FIG. 8 is a perspective view of one embodiment of a cellulartelephone/PDA combination device in a PDA mode. As discussed earlier,when describing the embodiment in FIG. 5, the male portion 202 and thefemale portion 252 of the uniaxially pivotable hinge 108 are disengagedwhen the combination device is in the PDA mode (See FIG. 7).

It is to be understood that the foregoing discussion of one embodimentof the invention is not to be construed as limiting and it iscontemplated that the uniaxially pivotable hinge may be operationallyreversed such that the male portion is rotationally movable and axiallystationary while the female portion is axially moveable (androtationally stationary). Moreover, the female portion can berotationally movable while the male portion is rotationally fixed withaxial movement being on either component. Further, in some embodimentsit may be desirable to render both male and female portions axiallymoveable. Following exposure to the teachings in this specification, oneof ordinary skill in the art is capable of easily constructing thealternate embodiment noted.

The terms “first,” “second,” and the like, herein do not denote anyorder, quantity, or importance, but rather are used to distinguish oneelement from another, and the terms “a” and “an” herein do not denote alimitation of quantity, but rather denote the presence of at least oneof the referenced item.

While the disclosure has been described with reference to exemplaryembodiments, it will be understood by those skilled in the art thatvarious changes may be made and equivalents may be substituted forelements thereof without departing from the scope of the disclosure. Inaddition, many modifications may be made to adapt a particular situationor material to the teachings of the disclosure without departing fromthe essential scope thereof. Therefore, it is intended that thedisclosure not be limited to the particular embodiment disclosed as thebest mode contemplated for carrying out this disclosure, but that thedisclosure will include all embodiments falling within the scope of theappended claims.

1. A cellular telephone/personal digital assistant combination devicehaving a first portion and a second portion, the first portion beingpivotably adjustable in two directions relative to the second portion,the device comprising: a biaxially pivotable hinge interconnecting thefirst portion and the second portion; and a disengagable uniaxiallypivotable hinge capable of selectively (a) interconnecting the firstportion and the second portion and (b) releasing connection between thefirst portion and the second portion, the selectivity being dependentupon a rotational position of the first portion relative to the secondportion about the uniaxially pivotable hinge, wherein the uniaxiallypivotable hinge comprises: a female portion; and a male portion, whereinthe male portion comprises an actuator having an engagement interfaceprofile, which, cooperates with a complementary profile of the femaleportion, wherein the depth of engagement of the male portion with thefemale portion increases from a disengaged position to a fully engagedposition with increase in rotational separation of the first portionrelative to the second portion measured perpendicularly to an axialdirection to the second hinge.
 2. The device as claimed in claim 1,wherein the engagement interface profile includes a stop surface and aramp surface that interacts with a land and a ramp structure of thecomplementary profile, to compress or allow expansion of a biasingmember, which in turn decreases or increases depth of engagement of themale portion with the female portion, respectively.
 3. The device asclaimed in claim 2, wherein the biasing member is a coil spring.
 4. Thedevice as claimed in claim 1, wherein the male portion includesstructure rendering it pivotable with one of the first portion and thesecond portion.
 5. A cellular telephone/personal digital assistantcombination device comprising: a display housing; a keypad housing; afirst hinge interconnecting the display housing and the keypad housingthat is pivotable in at least two directions; and a second hingeinterconnecting the display housing and the keypad housing, the secondhinge having a first portion and a second portion said first portionbeing automatically disengagable from said second portion when thedisplay housing is at less than a selected pivot angle relative to thekeypad housing, wherein the first portion of the second hinge and thesecond portion of the second hinge are biased into engagement with eachother, further wherein the first portion comprises: an engagementinterface profile which cooperates with a complementary profile of thesecond portion, wherein the depth of engagement of the first portionwith the second portion increases from a disengaged position to a fullyengaged position with increase in rotational separation of the displayhousing from the keypad housing measured perpendicularly to an axialdirection to the second hinge.
 6. The combination device as claimed inclaim 5, wherein one of the first portion and the second portion of thesecond hinge is disposed at one of the display portion and the keypadportion, and the other of the first portion and the second portion isdisposed at an other of the first portion and the second portion.
 7. Thecombination device as claimed in claim 5, wherein the combination deviceis in a cellular telephone mode when the display housing is rotatedrelative to the keypad housing about an axis of the second hinge.
 8. Thecombination device as claimed in claim 5, wherein the engagementinterface profile of the first portion which when cooperating with thecomplementary profile of the second portion urges an actuator out ofengagement with the second portion upon rotational separation of thedisplay housing from the keypad housing in a direction transaxial to thesecond hinge.